1Original FT232RL: Using the original FT232RL, the communication speed is fast, stable and reliable, and the compatibility is better. 2Stable Isolation Voltage: Onboard integrated power isolation, providing stable isolation voltage, no additional power supply required at the isolated end. 3Integrated Magnetic Isolation: The onboard integrated magnetic isolation allows signal isolation, high reliability, strong anti interference, and low power consumption. 4Onboard Resettable Fuse: Onboard resettable fuses and protection diodes ensure stable current and voltage output, provide overcurrent and overvoltage protection, and improve shock resistance. 5Onboard TVS: The onboard TVS (Transient Voltage Suppressor) can effectively suppress the surge voltage and transient peaking voltage in the circuit, and protect against static electricity. Item Type: USB to RS232/485/TTL Isolation Converter Material: Aluminum Alloy Shell Product Type: Industrial Optical Isolation Converter Baud Rate: 300-921600bps Host Port: USB Device Port: RS485/RS232/TTL USB: Working Voltage: 5v Connector: USB-B Protection: 200mA Resettable Fuse, Isolated Output Transmission Distance: Approx. 5meters / 5.5yd RRS485 Connector: Screw Terminal Pins: A+, B-, GND Direction Control: Hardware Automatic Control Protection: 600w Antilightning Surge, 15KV ESD Protection (Reserved 120R Balance Resistance Pad) Transmission Distance: Approx. 1200meters / 1312.3yd Transmission Method: Point to Multipoint (Up to 32 Nodes, Repeaters Are Recommended for More Than 16 Nodes) RS232 Connector: DR9 Male Protection: Tvs Diode, Surge Protection, Esd Protection Transmission Distance: Approx. 15meters / 16.4yd Transmission Method: Point to Point TtlTTL(UART): Working Voltage: 3.3v/5v Connector: Screw Terminal Pins: TXD, RXD, GND Protection: Clamp Protection Diode, Antiover, Negative Voltage, Antishock Transmission Method: Point to Point Led Indicator: PWR: Red Power Indicator, on when There is a Usb Connection and a Voltage is Detected TXD: Green Tx Indicator, on when the Usb Port is Sending Data RXD: Blue Rx Indicator, on when the Device Port Sends Back Data Operating Environment: Temperature: -15-70 Humidity: 5%rh-95%rh Operating System: for Windows 10 8.1 8 7 XP 1 x USB to RS232/485/TTL Isolation Converter 1 x Connecting Line